GitHub recently published this repo SpecKit, an open-source toolkit to fix a big weakness of vibe coding: that AI often starts coding before the product rules are clear.

119K+ stars ⭐️

It turns vibe coding from “ask the AI to build it” into “write the product spec first, then make the AI build from that spec.”

Most AI coding today starts with a loose prompt, then jumps straight into code, which often produces working demos but weak requirements, missing edge cases, and messy rework.

Spec Kit pushes the process the other way: first define what the product must do, then clarify gaps, then create a technical plan, then break that plan into tasks, then let the agent implement against those written artifacts.

So here the spec is no longer disposable documentation; it becomes an executable development contract that guides Copilot, Claude Code, Codex, Gemini, Cursor, Qwen, and 30+ other agent integrations.